Screen cylinder frame



FIG. 1 is a perspective view

FIG. 2 is a right side view.

FIG. 3 is a left side view.

FIG. 4 is a top view; and,

FIG. 5 is a bottom view.

The broken lines shown in all figures are for illustrative environmental purposes only and form no part of the claimed design. 

The ornamental design for a screen cylinder frame, as shown and described. 